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Title: Channeling of ultrarelativistic particles

Abstract

A model using an averaged charge distribution similar to the Linhard model has been used to analyze theoretically the channeling of ultrarelativistic particles moving inside cylindrical regions and plane layers formed by thermal vibrations of the nuclei of the lattice of a single crystal. A difference is found in the angular and energy distributions of electrons and positrons making up e/sup +/e/sup -/ pairs produced by collimated high-energy photons. A combined discussion is carried out of the motion and radiation of channeled ultrarelativistic particles. It is shown that for a sufficiently high initial energy, damping of the transverse oscillations occurs according to a law differing appreciably from exponential. In this case after complete damping of the transverse oscillations the final energy of the particles depends on their initial energy (epsilon/sub f/approx.epsilon/sub i//sup 1/3/). A discussion is given of the possible relation of the radiation of channeled electrons and the anomalous electromagnetic showers of Schein observed in nuclear emulsions exposed in the stratosphere.

Authors:
;
Publication Date:
Research Org.:
Joint Institute for Nuclear Research
OSTI Identifier:
5873421
Alternate Identifier(s):
OSTI ID: 5873421
Resource Type:
Journal Article
Journal Name:
Sov. J. Nucl. Phys. (Engl. Transl.); (United States)
Additional Journal Information:
Journal Volume: 29:2
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ELECTRONS; ENERGY LOSSES; MONOCRYSTALS; CHARGED-PARTICLE TRANSPORT; ELECTRON CHANNELING; ANGULAR DISTRIBUTION; CASCADE SHOWERS; DAMPING; ELECTROMAGNETIC RADIATION; ENERGY SPECTRA; GEV RANGE 10-100; NUCLEAR EMULSIONS; PAIR PRODUCTION; RELATIVISTIC RANGE; SILVER BROMIDES; BROMIDES; BROMINE COMPOUNDS; CHANNELING; CRYSTALS; DISTRIBUTION; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; GEV RANGE; HALIDES; HALOGEN COMPOUNDS; INTERACTIONS; LEPTONS; LOSSES; RADIATION TRANSPORT; RADIATIONS; SHOWERS; SILVER COMPOUNDS; SPECTRA; TRANSITION ELEMENT COMPOUNDS 654001* -- Radiation & Shielding Physics-- Radiation Physics, Shielding Calculations & Experiments

Citation Formats

Bonch-Osmolovskii, A.G., and Podgoretskii, M.I. Channeling of ultrarelativistic particles. United States: N. p., 1979. Web.
Bonch-Osmolovskii, A.G., & Podgoretskii, M.I. Channeling of ultrarelativistic particles. United States.
Bonch-Osmolovskii, A.G., and Podgoretskii, M.I. Thu . "Channeling of ultrarelativistic particles". United States.
@article{osti_5873421,
title = {Channeling of ultrarelativistic particles},
author = {Bonch-Osmolovskii, A.G. and Podgoretskii, M.I.},
abstractNote = {A model using an averaged charge distribution similar to the Linhard model has been used to analyze theoretically the channeling of ultrarelativistic particles moving inside cylindrical regions and plane layers formed by thermal vibrations of the nuclei of the lattice of a single crystal. A difference is found in the angular and energy distributions of electrons and positrons making up e/sup +/e/sup -/ pairs produced by collimated high-energy photons. A combined discussion is carried out of the motion and radiation of channeled ultrarelativistic particles. It is shown that for a sufficiently high initial energy, damping of the transverse oscillations occurs according to a law differing appreciably from exponential. In this case after complete damping of the transverse oscillations the final energy of the particles depends on their initial energy (epsilon/sub f/approx.epsilon/sub i//sup 1/3/). A discussion is given of the possible relation of the radiation of channeled electrons and the anomalous electromagnetic showers of Schein observed in nuclear emulsions exposed in the stratosphere.},
doi = {},
journal = {Sov. J. Nucl. Phys. (Engl. Transl.); (United States)},
number = ,
volume = 29:2,
place = {United States},
year = {1979},
month = {2}
}